996471089 has 2 divisors, whose sum is σ = 996471090. Its totient is φ = 996471088.

The previous prime is 996471053. The next prime is 996471139. The reversal of 996471089 is 980174699.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 537868864 + 458602225 = 23192^2 + 21415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996471089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 996471089.

It is not a weakly prime, because it can be changed into another prime (996471029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498235544 + 498235545.

It is an arithmetic number, because the mean of its divisors is an integer number (498235545).

Almost surely, 2^996471089 is an apocalyptic number.

It is an amenable number.

996471089 is a deficient number, since it is larger than the sum of its proper divisors (1).

996471089 is an equidigital number, since it uses as much as digits as its factorization.

996471089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 996471089 is about 31566.9303068892. The cubic root of 996471089 is about 998.8223099239.

The spelling of 996471089 in words is "nine hundred ninety-six million, four hundred seventy-one thousand, eighty-nine".